[PATCH] PCI: msi abstractions and support for altix

Abstract portions of the MSI core for platforms that do not use standard
APIC interrupt controllers.  This is implemented through a new arch-specific
msi setup routine, and a set of msi ops which can be set on a per platform
basis.

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/asm-x86_64/msi.h b/include/asm-x86_64/msi.h
index 356e0e82f50..8d6d6bf8fad 100644
--- a/include/asm-x86_64/msi.h
+++ b/include/asm-x86_64/msi.h
@@ -13,4 +13,12 @@
 #define LAST_DEVICE_VECTOR              232
 #define MSI_TARGET_CPU_SHIFT    12
 
+extern struct msi_ops msi_apic_ops;
+
+static inline int msi_arch_init(void)
+{
+        msi_register(&msi_apic_ops);
+        return 0;
+}
+
 #endif /* ASM_MSI_H */